package com.aatrox.bhsypro.util;

import java.security.MessageDigest;

/**
 * @Author zhushaojie
 * @Date 2020/6/15 18:19
 */
public class MD5Encode {

private final static String[] hexDigits = { "0", "1", "2", "3", "4", "5","6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };

public static String getMD5Str(String str) {
    String resStr = "";
        try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        resStr = byteArrayToHexString(md.digest(str.getBytes()));
        } catch (Exception ex) {
        ex.printStackTrace();
        }
        return resStr;
        }
        /**
      * 转换字节数组为16进制字串
      * 
      * @param b
      *            字节数组
      * @return 16进制字串
      */
        private static String byteArrayToHexString(byte[] b) {
        StringBuffer resSb = new StringBuffer();
        for (int i = 0; i < b.length; i++) {
        resSb.append(byteToHexString(b[i]));
        }
        return resSb.toString();
        }


        private static String byteToHexString(byte b) {
            int n = b;
        if (n < 0) n = 256 + n;
        int d1 = n / 16;
        int d2 = n % 16;
        return hexDigits[d1] + hexDigits[d2];
        }

        }


